[sarupaul]

Thanks alot. This is the side by side view of two type of MH750. Did you get any chance to listen with these type?

 

[brianforever]

Thanks alot. This is the side by side view of two type of MH750. Did you get any chance to listen with these type?

@sarupaul Sorry for the late reply as I just got to see your post today.
Yes I have tried both versions and to say the reason is Sony has 2 iterations of their drivers (pop it open yourself, only takes less than 2 mins ) from 2012-2013 (13WK-XX) -Off centered oval vent & their newer 2015/6/7/8/9 (15wk XX) with centered round vent and they share almost identical sound signatures except the newer version has a slightly elevated Mid/Sub Bass, also mentioned by @TheVortex, as I believed Sony made some improvements with the newer drivers

edit/ @sarupaul your 2 MH750 labels looks suspect, I believe one of it might be a Fake or not but reading your labels 1 is AG-0500 & the other is AG-0501 and both are MFG in 2015 week 35, 15W35, pop it open to investigate, as the fakes does not have any air vents at all, also does not have the 12/6 o'clock round metal eyes, and large blob of audio epoxy glue, that's a sure way to spot if its real or not

Also, the vents on the side of each of an authentic Sony MH750 allows air within the shell, which acts as an acoustic chamber, to flow out, so you can hear deeper, richer bass tones. Do a A/B testing and its obvious which has the better sounding signature.

Below images courtesy of @eqsOne

 

[Ashimaru]

Hi, i found two dealers Sony MH1C in my country. One sell Sony MH1C that produce in 2014 (14Wxx) and other produce in 2012 (12Wxx). Any different in two year production these? Which one the best?
I saw 2012 manufacturing have black & green eartips with two texture in hood (solid and transparent), and 2014 manufacturing only have black tips with same texture. Thanks

 

[brianforever]

Hi, i found two dealers Sony MH1C in my country. One sell Sony MH1C that produce in 2014 (14Wxx) and other produce in 2012 (12Wxx). Any different in two year production these? Which one the best?
I saw 2012 manufacturing have black & green eartips with two texture in hood (solid and transparent), and 2014 manufacturing only have black tips with same texture. Thanks

honestly mate, my experience with Indonesian dealers for old batches Sony IEMs have always been 100% Fakes ..never ever got any authentic from them at all